This, I believe, was based on a Japanese manga called Tetsujin 28-go. Gigantor was set in the "future" year of 2000, where a boy named Jimmy is the nephew of Dr. Bob Brilliant and lives with him on an island. Jimmy fights crime around the world with the help of a huge remote-controlled robot named Gigantor. The robot is made of steel, and has a rocket-powered backpack for flight, a pointy nose, eyes that never move, and incredible strength, but no intelligence.
Parallels have been drawn between Gigantor and Ted Hughes' Iron Man.
Do You Remember Gigantor?
Do You Remember Gigantor?